Keyboard telegraph-transmitter.



PATEN TED APR. 16, 1907.

G. M. GODDARD. KEYBOARD TELEGRAPH TRANSMITTER.

1 APPLICATION FILED APR.30,1906.

3 SHEETSSHBET 1.

D mm m we we M E G R O E G WITNESSES A TTORNE Y8 PATENTED APR. 16, 1907.

G. M. GODDARD. KEYBOARD TELEGRAPH TRANSMITTER.

APPLICATION FILED APR. 30,1906.

0 R A o o o G M E G R O E 6 ATTORNEYS PATENTED APR. 16, 1907.

G. M. GODDARD. KEYBOARD TELEGRAPH TRANSMITTER.

APPLIOATION FILED APB..30, 1906.

3 SHEETSSHEET 3.

m H A M0 6. M E G R m G W/TNESSE ATTORNEYS All/Illa UNITED STATES PATEN ori ice...

GEORGE MosEs GQDDARIV), or RUTLAND, VERMONT, Assielvoii or HALF TOGEORGE e. THRALn-oF U LANn- EBMONT." 1

KEYBOARD TELEGRAPH -T BAN SMITTER.

Specification of Letters Patent.

Patented-April 16, 1 907.

Application filed April 30,1906. Serial Nos14,41.1.

To all whom it may concern:

Be it known that I, GEORGE Moses Gon- DARD, a citizen of the United States, residing at Rutland, in the county of 'Rutland and 5 State of Vermont, have invented a new and useful Improvement in Keyboard Telegraphan expert telegrapher, but in which any one capab e of operating the keys of a I typewriter may by operating the keys of my in strument translate the letters and characters ordinary Morse signals.

My invention conslsts 1n the novel ,con-

struction and arrangement of the train ofof the circuit to produce the dots and dashes.

representing the particular key struck. Y

My IIVBIltlOIlJtlSO consists in the construction and arrangement of the parts whereby 5 my transmitter mechanism may be applied to an ordinary type-writer, whereby at the same time 'a Morse signal-message may be sent and an exact duplicate of it in typeprinted letters be made at one operation, the .parts being so adjustably connected as to permit the transmitter to be used without printing on the type-writer or the typewriter used without the transmitter, or both used together.

My invention also consists in the novel construction and'arrangement of the circuit- 1, breaking disks forming the Morse signals and in means for repeating on the same disk a short Morse character without innolving a 40 complete rotation of the disk. h

'M invention also further consists in other details and combinations of parts, as hereinafter fully described with reference to the drawings, in which Figure 1 is a partial plan view of my transmitter. Fig. 2 is a vertical section taken transversely to the commutation-cylinder. Fig. 2 is a similar section showing a different position ofa commutation-disk. Fig. 3 is a section similar to Fi 2, but showing a form of commutation-dis that stops, at every half-revolution. Fig. 4 is a vertical sectional view showing the relation of my transinto the corresponding dots and dashes of the mitter to the ordinary parts of a type-writer. Fig. 5 shows means for coupling the transmittertothe type-writer. Fig. 6 is a vertical section on line .6 6 of Fig.1, and .Fig. 7 is a perspective detail of one of the disks.

In the drawings, Figs. 1 and 2, P represents the keys of a keyboard, like that of an ordinary type-writer, which keys are mounted upon the ends of levers A, ivoted at their rear ends at N and norma ly held up by springs C, Figs. 2, 3, and 4. These levers at an intermediate point ass beneath a composite commutatlon cy nder X, formed of a series of independently-rotatabledisks ar-' ranged side by side with suitable insulatingblocks inlaid on their spond to the breaks in t e circuit forming the Morse signals, each diskrepresenting a separate letter or character. Between each disk and its subjacent key-lever are arranged devices for making and breaking electrical contact and for starting'and stoqpigig the mo xlree more in 1y ment of each disk, which W1 described hereinafter.

The commutation-cylinder X has within its disks a continuously-rotating shaft S, Fig. 6, which is longitudinally fluted, as seen at k, to form throughout'its len th continuously-extended teeth. This sha t at one end is provided with a ri idly-attached gearwheel S, (see Figs. 1 and 6,) which is in mesh with a' small pinion s on the shaft of the revolving armature of an electric motor Y. To this motor the electric current is supplied to eripheries to correoperate it through the conductor-wires y and y. Although I have shown a smallelec- "tricmotor to give continuous rotation to the commutator-shaft, I would have it understood that any other motor mechanism, such as a spring or wei ht, may be employed, and in connection wit the motor mechanism a speed-regulating governor, such as is used on t e phonograph, should be em loyed. This I have not shown, as it is wel known and forms no part of my invention I will'now describe the means for transmitting a Morse-character by the operation 'of the keys, reference being had to Figs. 1

and 2. Each key-lever representing a letter, a figure, or other character has its key so lainlymarked as to be quickly identified, 'ke the keys of a t e-writer, and each disk has upon its perip erya succession of .con-

ductin ductive and non-conductive spaces re resenting a translation of that letter or c ar-. 'acter iiito the cmresponding character of the Morsesignals;- The dislg' ..itseli-i is made of mctal, as seen'at It, Fig. 7 and the non-confaces F are of hard rubber inlaid upon t e peri iheral surfaeefiaiid'succeeding each other to orm the dots and dashes of .the Morse =-character; .Eachdisk is on one side recessed out centrally 'abdut its hub portion, (see Figs. 2 and 7,) and the recess on one side extends outto and opens through the periphery of the disk. In this recess is pivoted at t a dog T, having at its inner end a toothlc, which by means of a spring -V is forced, when unrestrained, into engagement with the teethk of the central shaft S. The s ring V is coiled about the shaft in the centra recess, and one end is attached to the disk and the other end to the dog. The outer end of the dog is extended sidewise to form a oot that practically closes the lateral opening in p the periphery of the disk and forms a sort of elbow-lever, so that if it be pressed inwardly it deflects the dog and throws the tooth k of the dog out of engagement with the shaft. This disengaged positionof any dog within its disk (shown in Fig. 2) is the normal osition of all the disks except the one disk w ich is being operated to send its character.

The telegraph-line is extended to my instrument by means of a duplex cable and plug, the two ends of which cable (shown at Z connect as follows: The positive wire Z connects with a brush orspring 1', restin upon the shaft, which latter is in electrica connection with the metal-of each one of the disks. The negative wire Z (see Fig. 2) is connected to an insulated metal cross-bar B, which carries a se arate roller-contact b for each disk. I e er a roller, as it reduces friction; but a flat s ring-contact might be used. The insulate bar B rests upon a stationa cross-bar G, extending from side to side 0 the machine immediately'below the commutation-cylinder. This bar is erfor- I ated with a row of holes and throug each hole below a disk there slides a short vertical pin E, bearing on its upper end a stop-roller d, Whose function is to limit the rotation of the disk and cause it to alwa s start and stop at the same point. This roller is ressed upwardly by a spiral spring 6, wound about the pin E above the bar G. The pin has at its lower end a loose slip connection with the key-lever, consisting of a link Land a headed stem W, whose lower end is connected to the key-lever and whose upper end asses into the link and-has a head within t e link, so that when the key-lever is de ressed it will pull down the link L and pin E with its sto roller (1, but allows the lever to rise imme iately by the head of the stem IV slipping up in the link, as in Fig 2. i

The contact-roller b. is the full width of the all the parts except those connectin the key-lever which'has been depressed. en any such key-lever is depressed, its stop-roller d is drawn down away from the dog T, and the latter by the tension of the springV will instantly engage the shaftand lock the disk to the shaft, as seen in Fig. 2, with the result that this disk'will rotate with the shaft and, through contact-roller b traveling on the edge of't-he disk, will make and break the circuit the requisite number of times and with proper intervals to transmit a Morse character corresponding 'to the, key depressed. When the disk has made a complete revolution, the. outer end of its dogagain comes over the stop-roller d and the 5 ring 6 below it forces the roller upwardly, eflecting the dog and disengaging -it fromtheshaft and stopping the disk exactly at the right point to start another similar characterwhen ,the same ke is depressed. I

For t e shorter Morse characters it is not necessary to wait for the com lete revolution of the disk to form'a sing e character;

but in such case I form two or more characlOO one following the other, and limitthe rotation of the disk to a part of a revolution. 3 I show two similar characters on the same disk and means for starting and stop ing the disk at every half-revolution. In t iis case there are but a single dog T and spring V; but the disk is recessed at its periphery at two diametrically opposite points. A yoke H extends around one side of the disk. Its lower end is slotted to form the link L, cor-, responding to link L of Fig. 2. A crosssbar I, higs. 1 and 3, extends parallel to and above the commutation-cylinder, and on it are hung short levers a, one above and inthe plane of each double-character disk. One end of the lever is jointed to its yoke H, and the other end has a stop-roller a at an exactly opposite point to the sto -roller d. Now when the key-lever of this isk is depressed, stoproller d is withdrawn from the dog, and the latter engages the shaft to turn the disk. At the same moment, however, that the lever A descends to pull sto roller d away from the disk the yoke. is ulled down, as in dotted lines in. Fig. 3. his tilts lever a on fulcrum-rod I and lifts the stop-roller 0/ out a of the upper notch in the disk and allows it to has turned a half-revolution, then the dog comes under the upper stop-roller a and the latter drops into the notch and, deflecting the dog, disengages its disk from the actuatingshaft. The next time. this same key is struck the upper stoproller 0, rises from the dog, again coupling the shaft and disk, and the lower stop-roller (1 simply movesout of the duplicate notch in the disk and allows the disk to turn. In this way it will be seen the two sto rollers d and a. move simultaneously, but ave an alternate action upon the. dog, thus starting and stoIpping the disk every half-revolution.

will now describe theapplic'ation of my;

transmitter to an ordinary type-writer, referencebeing had to Fig. 4. P is one of the keys, A its type-lever, and B the basket of type-hammers of an ordinary type-writer.

'At a point just in rear of the type-basket I apply my commutation-cylinder or translatmg device, which is of the samepon'structi-on as that already described in Figs. 1 and 2, the only change required being in the coupling and uncoupling mechanismfor permitting the inde endent use of the type-writer, the indepen ent use of the transmitter, or the conjoint use of the two simultaneously.

For this purpose the pull-stems W have a I upper end, which may be thrown detachable connection with the key-levers,

consisting each of a short bar Z, pivoted to the key-lever at its lower end, so as to swing backward and forwardin the plane of the key-lever and having a hook-lug ,l at its orward to hook over a corresponding hooklug l on the lower end of thepull-stem W. When so engaged, it will be seen that when the key-lever is depressed it pulls downthe stop-roller d and starts the translating-cylinder. If, however, the bar 1 be thrown toward the oper-v ator, as indicated in dotted lines, this separates the hook-lug Z from lug l and the type-writer alone is operated. When the lugs Z l are engaged, it will be seen thatthe operation of the keys will at the same time print a type written message and transmit that message in the Morse characters to its remote destination, thus giving the operator and his company an absolute confirmation of the ke- '-levers A, as in dotted lines, so as to thejcorrectnes's of, the message transmitted and a permanent'recordthereof. If it is de sired to operate the transmitter alone without the t -writer, all that it is necessary to do is to s do a subjacent stop-bar O, Fig., 4, to a position close. enough to the lower sides of limit t e extent of the depression of the kc tiH'ust such slight range .0 movement as ock the translatin -disks withou t striking a blow with the t jammers, or, if desired, the s ace-bar. o the type-wr ter maybe locke down and the type hammers thrown ouLofApgigting action in any desired way.

To simultaneously cou le all the bars Zwith the pull-rods W, (see gs. 4, 5, 6,) the bars} the basket of key-hammers is lever operatin thereupon, and

are all formed with a longitudinal slot u',

By means of my invention. as thus described it will be seen that any novice or person unfamiliar with the Morse signals may'tele'graphthese characters and retain evidence of the correctness of the telegram.

I do not claim, broadly, the application of a keyboard with a bank of keys to a rotary translating device for telegraphic transmission, as I am-aware that this is not new,

I claim 1. A telegraphic transmitter, comprising a continuously-rotating shaft having its surface formed by longitudinal flutings into continuous longitudinal teeth along its length, commutating disks axially hung upon said shaft and recessed centrally and clutch devices for coupling the shaft to the disks arranged in the central recess of the disks.

2. A telegraphic transmitter comprising a continuously-rotating shaft having its surfaceformed by longitudinal flutings into continuous longitudinal teeth along its length, commutating-d" ks hung uponsaid shaft and recessed centrally and also out to the periphery on oneside andclutch devices for coupling the shaft to the disks, said' clutch devices being housed within the plane of the disk in the recess and havin one end extending out to the periphery of the disk. 3. 'A telegraphic transmitter, com rising a continuously-rotating shaft longitu v inally fluted to formcontinuous teeth along its length, a series of commutating-disks axi-' ally hung thereon side byside and formed withrecesses on the side, a locking-do pivotedwithin the recess of each disk anfhaving'one end constructed to engage the teeth of the shaft, a spring surrounding the shaft for throwin the dog into such engagement, a movable u ocking device for the do", a keycontactfor eac disk.

, 4., Atelegraphic transmitter, comprising a 1 continuously-rotating shaft formed with teeth throughout its length, a series of commutatan dlectrical ILO lug-disks arranged thereon side by side, said ks being recessed'centrally and out on one side'to theperiphery, a locking-dog arranged in this recess and havin a sprlng to throw it intoengagement with. t e teeth of. the shaft, an electrical springcontact riding on the edge of the disk, an unlocking device for the deg made thin enou h to enterthe recessed opening to serve hot to unlock the dog and each to act as a stop tolimit the rotation of the disk, and a key-lever for each disk connected to and operating the unlocking device.

5. A telegraphic transmitter, comprising a continuously-rotating shaft formed with teeth throughout its length, a series of commutatingdisks arranged" thereon side by side, said disks being recessed centrally and out on one side to the periphery, a locking dog pivoted in this recess and having its outer end extended across the recessed 0 ening, a coil-spring wound about the s aft within the recess and connected at one end to the disk and at the other end to thedog, a

key-lever for each disk and means operated thereby to normally hold the dog in an unlocked position.

6. In a telegraphic transmitter, a commutatin'g-disk recessed centrally and along one side out to the peri hery and a clutch device pivoted within sai recess and lying within the plane of the disk.

7. A telegraphic transmitter comprising a continuously-rotating shaft, commutatingdisks with clutch devices arranged therein and normally disconnected from the shaft, a key-lever for each disk having a clutch-operatin device bearing peripherally a ainst disk and arranged immediately elow the same and a slip connection between the key-lever and the clutch-operating device, whereby the key may immediately return, after the downward movement without affecting the clutch-operating device.

8. A telegraphic transmitter, comprising a continuously-rotating shaft, commutatingdisks arranged thereon and having each a lockinr device Within it for connecting it with t e shaft and two opposite recesses in the periphery of the disk, a double-stop device arranged,one upon one side of the disk and the other upon the opposite side to simultaneously enter and leavethe two recesses-and to alternately act upon the lock ing device therein and a key-lever operating the double stop device.

responding hooks for each dis 9. A telegraphic transmitter, comprising a continuously-rotating shaft, commutatingdisks arranged thereon and having each a locking device within it for connecting it with the shaft and two opposite recesses in the periphery of the disk, two opposite stop devices, a yoke H, with lever a carrying one of the stop devices, and a key-lever connected to said yoke and also carrying the other stop device.

10. The combination with the key-levers or disconnect the separable members of the vertical-pull devices.

11. The combination with the key-levers, I l

in a type-Writer; of a telegraphic transmitter consisting of translating-disks with means for setting anyone of them into rotation, said disks bein individually arranged above the corres on ing type writer key-levers, slotted hoo -stems pivoted to the key-levers and having hooks at their upper ends, cor-' vices, a rod passing through the slots 0 the ter hook-stemsinto engagement with the hooks above or out of-engagement, for coupling or uncouplingthe transmitter to the GODDARD.

-operatin de- "hook-stems and means for'projecting thelatr 

